羽流光谱的原子辐射仿真

推进技术 ›› 2000, Vol. 21 ›› Issue (2): 15-18.

羽流光谱的原子辐射仿真

赵永学,张育林

国防科技大学航天与材料工程学院!湖南长沙410073;国防科技大学航天与材料工程学院!湖南长沙410073

发布日期:2021-08-15

Simulation of atomic radiation for plume spectrometry

Inst.of Aerospace and Material Engineering, National Univ. of Defence Technology,Changsha 410073,China;Inst.of Aerospace and Material Engineering, National Univ. of Defence Technology,Changsha 410073,China

Published:2021-08-15

摘要/Abstract

摘要： 为对液体火箭发动机羽流光谱实验数据进行定量分析 ,通过建立高温气体下辐射传递模型 ,对1 Cr1 8Ni9Ti的理论光谱进行了仿真计算。结果表明 ,在路径一定的情况下 ,羽流中原子浓度较低时 ,可采用光学薄模型 ,原子浓度较高时 ,可采用光学厚模型

关键词: 液体推进剂火箭发动机;羽流;光谱测量;光学厚度;原子光谱学;数值仿真

Abstract: Based on the quantitative analysis of exhaust plume spectral experimental data,a radiative transport theory for high temperature gas was developed. The result of simulation for 1Cr18Ni9Ti in the plume was represented. The results indicate that while the length is equal, optically thin model is fit for lower concentration and optically thick model for upper situations.

Key words: Liquid propellant rocket engine;Plume;Spectral measurement;Optical thickress;Atomic spec-troscopy;Numerical simulation

赵永学,张育林. 羽流光谱的原子辐射仿真[J]. 推进技术, 2000, 21(2): 15-18.